固相反应法制备ALON陶瓷粉体的研究  

Study on the Preparation of ALON Powder by Solid State Reaction Method

作　　者：齐建起[1] 周纪承[1] 庞微[1] 何俊峰[1] 苏媛媛[1] 廖志君[1] 伍登学[1] 卢铁城[1] 

机构地区：[1]四川大学物理系和辐射物理及技术教育部重点实验室,四川成都610064

出　　处：《稀有金属材料与工程》2007年第A01期88-91,共4页Rare Metal Materials and Engineering

基　　金：国防基础科研基金(A142006200-06);霍英东青年教师基金(91046);四川省青年科技基金(03ZQ026-039)

摘　　要：采用微米级和纳米级的AlN粉体分别与纳米级Al2O3粉体组成不同原料体系,经球磨混合、干燥、高温焙烧、研磨过筛和再球磨等工艺步骤,尝试了纯相ALON陶瓷粉体的制备,并通过改变原料配比和焙烧工艺,借助XRD等分析,研究了原料粒度和配比、焙烧工艺以及纳米AlN在高温下氮气气氛中的氧化对制备粉体物相组成的影响,并在采用适当的原料配比和焙烧工艺下,制备得纯相ALON陶瓷粉体,并对其球磨前后的粒度分布、分散性以及表面活性进行了测试分析。Pure phase ALON （Al23O27N5） ceramic powder was fabricated by using nano-sized Al2O3 and micro-sized or nano-sized AlN powder with different ratios as raw materials and the following process, ball-milling, drying, high temperature calcining, screening,grinding and so on. Several kinds of powder obtained by different molar ratios and sintering conditions were measured by XRD analysis. Then the affecting factors of the powders＇ phase composition, such as the grain size and molar ratio of the raw materials, the calcining condition and the oxidation behavior of A1N at high temperature in nitrogen atmosphere were studied. The optimal ratio of raw materials and calcining condition for preparing pure phase ALON powder were determined. In addition, the grain size of pure phase ALON before and after ball-milled was measured by TEM analysis, and the specific surface area of the ball-milled ALON powder was measured by BET method.

关 键 词：固相反应法 纯相 ALON粉体 

分 类 号：TB383.3[一般工业技术—材料科学与工程]